GasCap™
Gas Capacity Calculator
Know before
you go.
Calculate fuel & cost before you pull up to the pump.
⛽Real-time prices
✓Works offline
Fill up in the morning — fuel is denser when it's cool, so you get slightly more per gallon.
How to use
1Pick a vehicle
2Set fuel level
Current Fuel Level
Drag the handle · or tap anywhere on the arc
3Choose a goal
Fill Up To
4Get the answer
Gas Price per Gallon
$
⚡